baber/WOPTO huggingface dataset:
Patent GB-867771-A (GB)
Title: 10-hydroxydec-2-enoic acid compounds and their method of preparation
Inventor: FRAY GORDON IAN
IPC: A23K1/16
Filed: 1959-07-27
Abstract: Trans-10-hydroxydec-2-enoic acid is obtained by dehydrogenation of 10-hydroxy-2-halodecanoic acid or one of its salts or a derivative thereof in which the hydroxy group is protected by conversion into a functional derivative, or by reacting 8-hydroxy-octanol with malonic acid and decarboxylating the decarboxylic acid so formed.  As functional derivatives there may be employed the acetyl and tetrahydropyranyl derivatives.  The preferred intermediate compound is 10-acetoxy-2-iododecanoic acid.  11-Acetoxyundec-1-ene is obtained by acetylating 11-hydroxyundec-1-ene.  10-Acetoxydecanoic acid is obtained by oxidising 11-acetoxyundec-1-ene or by reducing the sodium or potassium salt of the half ester of sebacic acid to obtain the sodium salt of 10-hydroxydecanoic acid, which is acetylated. 10-Acetoxydecanoic acid chloride is obtained by treating the corresponding acid with thionyl chloride.  10-Acetoxy-2-bromodecanoic acid is obtained by treating 10-acetoxydecanoic acid chloride with bromine.  10-Acetoxy-2-iododecanoic acid is obtained by refluxing 10-acetoxy-2-bromodecanoic acid with sodium iodide.  8-Acetoxyoctanal is obtained by reacting 8-acetoxyoctanoic acid with thionyl chloride to form the acid chloride which is reduced, or by converting 8-acetoxy-1-bromo-octane to 8-acetoxyoct-1-yl toluene-p sulphonate which is oxidised.  8-Acetoxyoctanoic acid is obtained by reacting 6-chlorohexanol with alkali metal malonate, hydrolysing, acylating, and decarboxylating.ALSO:A composition comprises a major proportion of a foodstuff suitable for animals and a minor proportion of trans-10-hydroxydecz-enoic acid or salts, esters or glycosides thereof from which the trans-10-hydroxydec-z-enoic acid may be liberated by chemical or enzymatic processes in vivo.ALSO:A composition comprises a major proportion of a non-toxic diluent and a minor proportion of trans-10-hydroxydec-2-enoic acid or salts, esters or glycosides thereof from which the trans-10-hydroxy-dec-2-enoic acid may be liberated by chemical or enzymatic processes in vivo.  As non-toxic diluent there may be used a foodstuff suitable for humans and animals.
Patent GB-1269526-A (GB)
Title: Apparatus for imparting twist to a multi-strand cable
IPC: D07B3/08
Filed: 1969-05-20
Abstract: 1,269,526. Rope-making machines. GENERAL CABLE CORP. 20 May, 1969 [23 May, 1968], No. 25698/69. Heading D1T. Cable 4 is twisted before passing to a rotating take-up cradle and reel 7 by a twisting unit 12, two of which are shown in Fig. 1, each mounted for rotation about the cable axis and including a flexible endless rope 17 wound helically round the cable in frictional engagement therewith and a braked sheave 22 resisting movement of the rope. As the cable 4 is drawn towards the take-up cradle 7, the rope 17 exerts a twisting force thereon. To provide a substantially uniform twist along the cable 4, a photocell unit detects variations from the required lay by changes in position of a line printed on the cable by a wheel 49, the output from the photocell unit being used to control a magnetic clutch braking the sheave 22, and thus to control the twisting force. The rope 17 is stated to produce a substantially circular cross-sectional configuration of the cable 4. A spring-mounted sheave 24 takes up slack produced in the rope 17 by variations in the cross-section of cable 4. One, two or four twisting units 12 may be used, and each may carry more than one rope 17.
Patent GB-1510460-A (GB)
Title: Optical scanning systems
IPC: G02B27/00
Filed: 1974-06-10
Abstract: 1510460 Optical scanner HAWKER SIDDELEY DYNAMICS Ltd 6 May 1975 [10 June 1974] 25707/74 Heading G2J [Also in Division G 1] An optical scanning arrangement employing a rotating optical system includes scan correction means to ensure that the "image" of a detector 12 or a light emitting element raster scans across a plane (not along a curved path as in some prior Art) corresponding to the image plane of the object being viewed. A image of a single or multielement detector 12 or a light emitting element is produced by way of a lens 11, reflector 10 and a scanning drum 13. The drum 13 may have a series of corner cubes 14 arranged with their apices 15 at equal radii in a helix along the drum. Thus, each scanned line or set of scanned lines is contiguous with its neighbour. Across the "front" of each corner cube 14 is a scan corrector device 16 which may be a cylindrical lens 16, Fig. 4B, of infrared transmitting material. One surface of the lens is planar and the other 18 consists of small discrete steps 19, the face 20 of each being parallel to the plane surface. In another embodiment, Figs. 5A, 5B (not shown), the scan corrector is in the form of a rotating disc synchronized with the scanner 13. The disc consists of different thickness sections so that each complete revolution of the disc can corrent the "curvature effect" of one or more corner cubes.
Patent GB-377008-A (GB)
Title: Improvements in grinding mills
IPC: B02C13/28
Filed: 1931-09-14
Abstract: 377,008. Impact pulverizers. CRAGO, C. H., Glencona, Wakeford Road, Strathfield, near Sydney, Australia. Sept. 14, 1931, No. 25714. [Class 59.] In a mill for grinding cereals &c. comprising beater blades fixed to spaced discs, the blades 22, 23 are inserted in notches in the peripheries of the discs 21 and are secured therein by bolts or rivets 38 passed through their butts and through cheek rings 36 which are fixed on the disc sides. The blade tips are alternately straight and bent, the bent blades alternately project on opposite sides of the disc. The straight and bent blades may be stamped from a single sheet of metal or may comprise individual strips. The casing 3 may be provided with a removable corrugated lining, the corrugations being deeper in the direction of rotation of the discs. The material is fed into the mill through a pipe 4 and is discharged through removable screens 7 into a casing 2 from which it is removed by a conveyer 12. The driving shaft may be fitted with a propeller which supplies air to vents 15, Fig. 2, controlled by slides 16 in the end covers 1, 2, hoods 17 being placed around the vents to direct the air inwardly to the vents.
Patent GB-1032749-A (GB)
Title: Window frame element
IPC: E06B3/22
Filed: 1963-06-28
Abstract: 1,032,749. Window frames. A. WACHTER, [trading as ALFRED WACHTER KOMM GES]. June 28, 1963 [Oct. 19, 1962], No. 25729/63. Heading E1J. Synthetic plastic window frame, 1, and sash, 2, elements are of hollow rectangular crosssection with opposed hollow rectangular locating stop flanges 3, 4. Mitred corner joints (Fig. 3, not shown) may be formed using flat angle-pieces 6 as connectors.
Patent GB-657637-A (GB)
Title: Reclaiming rubber
Inventor: WARREN STANLEY FRANCIS
IPC: C08J11/28
Filed: 1946-09-25
Abstract: Vulcanized synthetic rubbers, such as those known under the names of "Buna" S and "Buna" A ("Buna" being a Registered Trade Mark) are reclaimed by heating in the presence of tertiary lauryl mercaptan. The process may be carried out at a temperature of 300-500 DEG  F., preferably using the extrusion apparatus of Specification 657,614. In examples, the rubber is treated with tertiary lauryl mercaptan together with aromatic petroleum solvents, petroleum resin, engine oil, lecithin, water, tertiary butyl catechol, ethyl butyric acid and/or Naftolen 100. Specifications 610,812 and 610,901, [both in Group V], are referred to.ALSO:Vulcanized natural or synthetic rubber is reclaimed by heating the rubber in the presence of tertiary lauryl mercaptan.  The synthetic rubbers may be those known under the names "Buna" S, and "Buna" A, ("Buna" being a Registered Trade Mark).  The process may be carried out at a temperature of 300-500 DEG  F., preferably using the extrusion apparatus of Specification 657,614. In examples the rubber is treated with tertiary lauryl mercaptan together with substances chosen from aromatic petroleum solvents, petroleum resin, engine oil, lecithin, water, tertiary butyl catechol, ethyl butyric acid and naftolen 100.  Specifications 610,812 and 610,901 are referred to.
Patent GB-1171406-A (GB)
Title: Chain Tensioner
Inventor: TURNER EDWARD CHARLES
IPC: F16H7/08
Filed: 1967-06-05
Abstract: 1,171,406. Chain tensioning arrangements. BORG-WARNER Ltd. 16 April, 1968 [5 June, 1967], No. 25766/67. Addition to 986,174. Heading F2Q. A chain tensioner comprises a blade 10 of a plastics material, e.g. hard nylon, which will acquire a permanent set under load and elevated temperature, one end 16 being attached to a fixed pivot and the other end 12 being pivoted to a slide 14 bearing on a fixed surface 28, a tension spring 44 urging the ends of the blade together so that it is bowed against a chain to be tensioned, and a ratchet device 30, 38 attached to the blade to prevent the ends 12, 16 moving apart while allowing them to approach one another. The spring 44 is connected at 46 to the blade 10 and at 42 to a member 38 pivoted at 26 to the slide 14. A pair of struts 24 is pivoted at 26 to the slide 14 and at 22 to the middle of the blade 10. The member 38 forms a sleeve engaging one end of a rod 30 connected by a pin 34 and slot 32 to the blade 10, to form the ratchet device. The rod diameter is 1¢ to 3 times the axial length of the sleeve portion of member 38, and has a few thousandths of an inch clearance in said sleeve. As an alternative, the ratchet device may comprise a toothed rack engaged by a spring-urged pawl. The pin-andslot connection 32, 34 allows small movements of the blade 10 without affecting the ratchet device.
Patent GB-730454-A (GB)
Title: Improvements in and relating to appaatus for operating on substantially flat surfaces, for example, to effect a grinding or polishing operation
IPC: B24B7/00
Filed: 1953-09-17
Abstract: 730,454. Abrading flat surfaces. YARROW, Sir H. E. Sept. 17, 1953, No. 25774/53. Class 60. A grinding wheel, wire brush or buffing pad 16 is rotated about its own axis and simultaneously given an oscillatory rocking movement to cause it to rock to and fro over the flat surface of a work-piece. A spindle 15 carrying the tool is pivotally mounted on a bracket 14 and oscillated by a rod 18 connected to a pin 20 on a gearwheel 19 driven by a pinion 21 on the shaft of a pneumatic motor 22. The bracket is carried by a platform 9 movable transversely with respect to a table 4 which is reciprocated by a lead-screw 5 driven by a second pneumatic motor 7. This motor is reversed by a trigger 23 mounted on the table 4 and arranged to operate a reversing valve through an amplifying linkage 24, a rod 26, a yoke 25 and a mass-loaded arm 27. The tool 16 is fed towards the work on each reciprocation of the table 4 by a pawl 13 adjustably secured to a base-plate 1 and arranged to intermittently rotate a ratchet-wheel 12 secured to a lead-screw which displaces the platform 9. The motors 7 and 22 and the motor for rotating the tool are supplied through airlines 30, 31, 32 and valves 30a, 31a, 32a from a reservoir 29. The apparatus may be operated by electric instead of pneumatic motors or by hand.
Patent GB-1069519-A (GB)
Title: Weld head for resistance welding
IPC: B23K11/31
Filed: 1965-06-18
Abstract: 1,069,519. Welding by pressure. HUGHES AIRCRAFT CO. June 18, 1963 [July 20. 1964], No. 25879/65. Heading B3R. A resistance-welding head comprises a support member, a first lever pivotally supported at one end by the support member and carrying an electrode assembly at the other end, a threaded second lever supported at one end by the support member and carrying a weight at the other end and a movable coupling memher engaging the threaded portion of the second lever to travel therealong in contact with the first lever. A support structure 14, Fig. 1, pivotally supports one end of a lever 10, the other end of which carries a pair of electrodeholding arms 24 carrying electrodes 26 and pivotally supports by a pivot block one end of a lever 12 threaded over its whole length and carrying at its other end a weight 30. A load truck 16 has a threaded bore engaged by the lever 12 and a pair of wheels 32 of insulating material which ride on a portion of the first lever 10. Adjustment of the force exerted on the electrode by the weight 30 is provided for by rotating a crank 42 carrying a pinion gear 38 engaging a bevel gear on the second lever 12, thus moving the truck 16 along the lover 12 and the lover 10. A spring 68 normally pulls a stop 70 on cable 66 against a bracket 64 depending from the lever 10 to prevent the lever rotating but when the cable is pulled to the right by a foot pedal &c. the lever 10 is released to rotate and the stop 70 operates a microswitch in the current supply.
Patent GB-541006-A (GB)
Title: Television synchronizing and control system
IPC: H04N5/08
Filed: 1939-09-16
Abstract: 541,006. Television receiving circuits. HAZELTINE CORPORATION. Sept. 16, 1939, No. 25997. Convention date, Oct. 5, 1938. [Classes 40 (iii) and 40 (v)] Synchronizing pulses are separated from negatively modulated television signals for controlling line and field frequency generators and producing automatic volume control as follows: The signals taken for example from the intermediate frequency amplifier 14, Fig. 1, of a receiver are fed by condenser 23 and resistance 24 to an amplifying valve 20 coupled to diode rectifiers 21, 22 by a transformer having tuned primary 25 and secondary 26 with stabilizing resistances 25b, 26b. The diode 22 has in its circuit a resistance 29 with a condenser 30 developing a voltage e, Fig. 2, from the peak synchronizing pulses S of the signal; and these voltage pulses are led to the line and field frequency generators 18, 19. The other diode 21 includes in its circuit a resistance 27 with a condenser 28 having a time constant considerably greater than the period of the line synchronizing pulses, whereby a voltage variation depending on the amplitude of the pulses S is developed across the resistance 27 and fed through a filter 31, 32 to control the bias of the radio and intermediate frequency amplifiers 12, 14 and the oscillator modulator 13. A tapping 35 at the end of a resistance 33 serves to bias the diode 22 from the voltage along the resistance 27. Specification 541,005 is referred to. Reference has been directed by the Comptroller to Specifications 363,605, 444,049, 445,428 and 497,116.
Patent GB-485142-A (GB)
Title: Improvements in or relating to the manufacture of alcohols and ethers
IPC: C07C41/06
Filed: 1936-11-14
Abstract: Alcohols and ethers are produced by passing an olefine, water or an alcohol, and a compound of phosphorus in a disperse phase through a reaction zone in which they are heated together.  The ethers may be symmetrical or mixed.  The phosphorus compounds may be acid or basic, and include phosphoric acid and its esters, amides, and amide-esters, phosphorous acid and its amides and amide-esters, basic compounds such as phosphines, tetraphosphonium bases and their salts, and triphosphine oxides. A large number of these compounds are mentioned. The acid compounds may be used with volatile bases such as ammonia and pyridine, and salts such as ammonium, alkyl ammonium and pyridine phosphates may be used.  Preferably the water or alcohol and the olefine react in the vapour state, and the reaction tube may be provided with baffles or other means for effecting turbulence. The reagents may be preheated to 150-200 DEG  C., the catalyst (which may be dissolved in water or alcohol) being injected into the mixture immediately before the reaction zone.  Alternatively the catalyst may be dissolved in a liquid which assists in the separation of the products by forming an azeotropic mixture with one constituent. Preferably the products are cooled rapidly, so as to produce fractional or complete condensation.  In examples: (1) ethylene and water vapour at 15 atmospheres pressure are preheated to 220 DEG  C. and passed through a baffled tube the walls of which are heated to 280 DEG  C. and a 5 per cent aqueous solution of triethyl phosphate is injected near the entrance; the product is ethyl alcohol, or, with a reduced proportion of water (such as 10 per cent of the mixture) ethyl ether: (2) ethyl alcohol vapour at 15 atmospheres pressure is mixed with ethylene or propylene and reacted as in the first example with an injection of aqueous phosphoric acid or ammonium phosphate, diethyl or ethyl-isopropyl ether being produced; (3) the process of example 2 is modified by having sodium or other metaphosphate or pumice in the reaction tube.  The second Provisional Specification describes a modification in which the olefine containing the gaseous catalyst is bubbled through the liquid alcohol which may contain a solid catalyst.  In that case the gaseous catalyst may be omitted.
Patent GB-1463108-A (GB)
Title: Alternating signal rectifying device
IPC: G01R19/22
Filed: 1974-06-12
Abstract: 1463108 Voltage measuring PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 June 1974 [15 June 1973] 26041/74 Heading G1U A known circuit in which an amplifier A, Fig. 1, having transistors T1, T2 in its output stage, drives a meter M via a bridge rectifier D1,...,D4, is modified, as shown in Fig. 2, so that the function of the first two bridge diodes D1, D2 is taken over by transistors T1, T2 connected as emitter followers. This results in the signal applied to the base of transistors T1, T2 having to overcome only two diode forward voltages rather than three as in the known circuit. FET's could be used in place of the bi-polar transistors shown.
Patent GB-817452-A (GB)
Title: Improvements in stands for microscopes
IPC: G02B21/24
Filed: 1957-08-19
Abstract: 817,452. Microscopes. LOCQUIN, M. Aug. 19, 1957 [Sept. 20, 1956; May 2, 1957; June 18, 1957], No. 26043/57. Class 97(1) A microscope stand comprises a base part resiliently connected to a part overhanging the base and means inserted between said parts opposite said connection to control the angular position of the overhanging part relative to the base part. As shown, the base part 42 has an upstanding leg 59 integral with the object-stage 43, this leg being resiliently connected by a torsion bar 47 to an upper part 48 which supports the objectives 49 and eyepiece 50. Opposite the bar 47 the parts 42, 48 are joined by a control device 52 formed by a tube 74, Fig. 9, having a screw cap 75 connected by a .spring 77 to a cap 79 which fits over an aperture in the base part. A nut 83 is also threaded on the tube 74 and bears on the base part through a ball run 84 and this nut, when rotated, moves the tube 74 to vary the angular position of the parts 42, 48. The resilient connection may also take the form of a resilient nose engaging the outer surface of leg 59 or accommodated in a groove therein. Also, part 48 may be freely hinged to the leg 59 or part 42 and spring connected thereto.
Patent GB-884621-A (GB)
Title: Method for preparing tetrahydroxydiboron
IPC: C01B35/16
Filed: 1960-07-27
Abstract: Tetrahydroxydiboron, H4O4B2, is prepared by p  reacting a tetra-alkyl-, or aryl-, aminodiboron with an acid in the presence of at least the stoichiometric amount of water. Acids are hydrochloric, hydrobromic, hydriodic, sulphuric, sulphurous, phosphoric, pyrophosphoric, oxalic, picric, methyl-, or benzene-, sulphonic, or trichloro- or fluoro-acetic, preferably in stoichiometric amount, i.e. 4:1 molar ratio.  The substituted tetra aminodiborons are derived from primary or secondary amines, and contain alkyl groups having not more than 6 C atoms, or phenyl, tolyl or naphthyl groups, e.g. tetra-(methyl amino)-, or (dimethyl amino)-, diboron, or corresponding ethyl, isopropyl, or n-hexyl compounds, or tetra-, (anilino)-, (p-toluidino)-, (1-naphthylamino)-, or (diphenylamino)-, diborons.  Excess water should be present sufficient to ensure solution of the amine salt formed.
Patent GB-1170210-A (GB)
Title: Improvements in and relating to Photographic Cameras.
IPC: G03B7/02
Filed: 1968-05-31
Abstract: 1,170,210. Photographic cameras. RICOH K.K. May 31, 1968 [June 8, 1967], No.26076/68. Heading G2A. A single lens reflex camera, Fig. 4, comprising an objective lens 17, a pentagonal prism 11, and a view-finder 14, has a built-in lightexposure indicating device responsive to the light entering the objective and including first and second lamps 3, 6, and means connected to the exposure-setting means of the camera for equalizing the intensities of the two lamps, whereby to set the correct exposure, the lamps being mounted behind the first reflecting surface of the prism, and light directing means including a mirror 15 and lens 16 directing the light from the lamps to a mirror surface 14' on the view-finder lens 14 to enable the lamps to be viewed in the view-finder. Lamp 3 is of known brightness and is in a series circuit Fig.1 (not shown) with a battery (1), switch (2) and resistor (4), and lamp 6 is in series with the battery and a photo-sensitive cell (5), exposed to the taking light through an iris (7) which is coupled to the iris diaphragm of the camera objective or to the shutter speed mechanism. The amount of light incident on the photosensitive cell (5) is controlled by adjusting the iris, to vary the current through lamp 6, and when the brightness of lamps 3 and 6 is equal, the exposure setting is correct. The lamps are arranged Figs.2, 3 (not shown) behind a brightness comparing window (9) having a ground glass plate (8), with a vertical partition plate (10) between them, the lamp assembly being mounted out of the light path between the objective and view-finder. The photo-sensitive cell may be mounted on a surface of the prism adjacent the first reflecting surface, or at a position 5' on the periphery of the view-finder.
Patent GB-155083-A (GB)
Title: An improved feeding-appliance for animals
IPC: A01K1/10
Filed: 1919-10-25
Abstract: 155,083. Vaughan, J. Oct. 25, 1919. Feeding-appliances for animals.-A receptacle for holding food, for example hay, in stables, which collapses automatically under its own weight as the contents are withdrawn, consists of sections a of wire mesh hinged together by links band having stays d, e, and wire loops c by which it may be suspended.
Patent GB-1531696-A (GB)
Title: Printing register setting device
IPC: B41F13/14
Filed: 1977-06-23
Abstract: 1531696 Setting register in printing machines POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 23 June 1977 [2 July 1976] 26267/77 Heading B6C A rotary printing machine has devices for adjusting both the axial and the circumferential register, wherein cylinder 4 carries a gear wheel mounted to be rotatable with the cylinder and meshing with a drive gear, the gear wheel having axially inclined gear teeth on a rim portion 9 which is axially displaceable relative to a bulb portion 10, a first lever-actuable sleeve 14 secured to a trunnion of the cylinder to be axially displaceable therewith to set the axial register, a second lever-actuable sleeve 26 supported on the trunnion to be axially displaceable relative thereto, the second sleeve being secured to the rim portion to be rotatably and axially displaceable therewith, so that movement of the second sleeve axially moves the rim portion -axially and hence, because of the inclined teeth of the rim portion, sets the circumferential register. The sleeves may be moved by levers 16, 27 actuated by a worm-and-wheel gearing turned by a hand wheel.